Employment Records
| Employment | Date | Status |
|---|---|---|
| University of Science and Technology, Kumasi, Ghana | Aug 1987-Sep 1989 | past |
| Prempeh College, Kumasi, Ghana, Chemistry and Mathematics Departments. | Sep 1989-Aug 1991 | past |
| University of Houston, Organic Chemistry Section. | Aug 1995-Aug 2000 | past |
| University of Texas, Houston Health Science Center, Houston, Texas | Aug 2000-Aug 2003 | past |
| University of Louisville, Brown Cancer Center, Louisville, Kentucky | Aug 2003-Aug 2005 | past |
| Tennessee State University (TSU), Nashville, Tennessee | Aug 2005 | current |
| Kwame Nkrumah University of Science and Technology (KNUST) | Sep 2010-Mar 2015 | past |
| Kwame Nkrumah University of Science and Technology (KNUST) | Mar 2015 | current |